[Lowfer] Class E vs. Class C what's your opinion ?

[n8tl]

Hmmm.....by experiment?....the numbers shouldn't lie.....Tom N8TL

----- Original Message ----- 
From: <k2ors at comcast.net>
To: "Lowfer on QTH.Net" <lowfer at mailman.qth.net>
Sent: Thursday, January 31, 2008 9:08 PM
Subject: [Lowfer] Class E vs. Class C what's your opinion ?


>
> Ed,
>
>> One problem with Class E amplifiers is the high harmonic content of
>>the output so adequate filtering is essential if you're going to put
>>something on the air.
>
>   I have heard it argued  that a low pass filter (which is designed around 
> a 50 ohm resistive load)  will not perform
> well into an electrically small, highly loaded antenna which will show a 
> highly reactive load at harmonics.
>
>   I have also heard it said that a highly efficient Class-E amplifier 
> won't have much harmonic energy .(However even 1% is a LOT of harmonic 
> energy to be radiating!)
>
>   I don't necessarily believe in either argument but how do you refute 
> that?
>
> --
> 73 Warren K2ORS
> WD2XGJ     136-140kHz
> WD2XSH/23 505-510kHz
> WE2XEB/2   160-189kHz
> WE2XGR/1 505-515kHz
>
> FN42hi
> http://www.w4dex.com/wd2xgj.htm
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